Baseball Savant has a swing and miss chart for batters. I tried to post it here, but my tech abilities are limited. What it showed was Julien was -1 runs on balls in the heart of the plate (i.e. true strikes) with 6 runs created by swings and -7 runs on takes. In the shadow zone around the true strike zone (50/50 pitches) Julien was -15 runs (-12 on swings, -3 on takes). In the next two zones, chase and waste, Julien was -4 on swings and +26 on takes for net of +22 on true balls.
I was surprised that Julien was a net negative on the pitches in the heart of the plate. All takes in this zone are negative, but I expected him to have a positive swing results that would exceed the takes. It also surprised me that Julien was -12 on swings in the shadow zone. It seems to me that he has been rung up a lot on pitches in this area, so I expected the takes to be a large negative, but was only -3.